<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>10-闹钟定时器</title>
	</head>
	<body>
		<script type="text/javascript">
			setInterval(function(){
				console.log('李宝莉::');
			},3000);
		</script>
	</body>
</html>
